Cam unit



FIG. 1 is a bottom view of a cam unit;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a top view thereof.

The broken lines of FIGS. 4, 7 and 8 illustrate portions of the cam unit that form no part of the claimed design. 

CLAIM The ornamental design for a cam unit, as shown and described. 